Below is a list of Porcupine SD zip codes. For your research we have also included Porcupine Area Code, Time Zone, UTC and the local Shannon County FIPS Code. Each Porcupine South Dakota zip code has a center Longitude / Latitude point (the Porcupine center is -102.33000183105 / 43.276798248291). For your convenience we have also indicated if that zip code in Porcupine observes Daylight Savings time.